Melt processing of (Nd,Y)BaCuO and (Sm,Y)BaCuO composites

被引：64

作者：

Schatzle, P

Bieger, W

Wiesner, U

Verges, P

Krabbes, G

机构：

[1] Inst. F. Festkorper- W., D-1171 Dresden

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1996年 / 9卷 / 10期

关键词：

D O I：

10.1088/0953-2048/9/10/007

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Solid solutions of (NdyY1-y)Ba2Cu3Oz and (SmyY1-y)Ba2Cu3Oz high-temperature superconducting materials were synthesized. The (Nd, Y)BaCuO composite samples melt textured in air atmosphere show high critical current densities of about 4.5 x 10(4) A cm(-2). A double exchange of both Y3+ and Ba2+ by Nd3+ (or by Sm3+, respectively) was observed in these materials. The results indicate vacancies on barium sites to exist additionally as defects in the substituted 123 phase of the melt textured materials. The microstructure reveals (Nd, Y)-211 or (Sm, Y)-211 inclusions with different Nd,Y and Sm,Y contents, respectively.

引用

页码：869 / 874

页数：6

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